Konica Minolta MagiColor 1600W Service Manual page 192

Field Service Ver. 1.0 Nov. 2008
4.3 Solution
4.3.1 Initial check items
• When a media misfeed occurs, first check the following initial check items.
Does the media meet product specifications?
Is media curled, wavy, or damp.
Is a foreign object present along the paper path, or is the
media path deformed or worn?
Are the rolls/rollers dirty, deformed, or worn?
Are the edge guide and trailing edge stop at the correct
position to accommodate the paper?
Are the actuators found operational when checked for
correct operation?
4.3.2 Lower feeder unit media take-up section
A. Detection timing
Type
Detection of mis- The leading edge of the paper does not block the registration sensor (PS2) even
feed at tray 2 media after the lapse of a predetermined period of time after the media feed solenoid
feed section (SD6) has been energized.
B. Action
Registration sensor (PS2)
Media feed solenoid (SD6)
Step
1 Check the initial check items.
Check the PRCB connector for proper con-
2
nection and correct as necessary.
3 Check the PS2 sensor.
4 Check SD6 for correct operation.
5 Change PRCB.
Check Item
Relevant electrical parts
Action
Action
Change the media.
Change the media.
Instruct the user in correct paper storage.
Clean or change the media path.
Clean or change the defective roll/roller.
Set as necessary.
Correct or change the defective actuator.
Description
Printer control board (PRCB)
WIRING DIAGRAM
Control signal
-
-
PRCB PJ12-6 (ON)
PCCB CN3-2 (ON)
-
4. Jam display
Location
(Electrical
component)
-
-
1600W: C-3
1650EN: C-3
B-5
-
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